Social — entry 034 of 38
Tumblr
Tumblr's REST API v2 covers blogs, posts, likes, follows, and queue/draft management, plus a newer Neue Post Format for structured content blocks. Reading most public blog data only needs a registered app's api_key, but posting, reblogging, or acting on a user's behalf requires OAuth authorization. Both OAuth 1.0a and OAuth 2.0 are documented as currently supported, including a dedicated token-exchange endpoint for apps migrating from the older flow to the newer one.
GreatAPIs Score
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<a href="https://greatapis.com/api/tumblr/"><img src="https://greatapis.com/badge/tumblr.svg" alt="Scored 57 on greatapis.com"></a>Auth quickstart
- Register an app / run the OAuth flow to obtain a bearer token.
- Send it as an Authorization header
Authorization: Bearer <token>
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.
Developer reference
Keyless/global tier: 300 calls/minute, 18,000/hour, 432,000/day per IP; keyed/per-consumer tier: 1,000 calls/hour and 5,000/day per consumer key (some endpoints carry their own stricter cap, e.g. blocks endpoint at 60/minute)